<?php

/*
 * This file is part of the php-phantomjs.
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace lemon\phantomjs\Cache;

/**
 * PHP PhantomJs
 *
 * @author Jon Wenmoth <contact@jonnyw.me>
 */
interface CacheInterface
{
	/**
	 * Write data to storage.
	 *
	 * @access public
	 * @param  string $id
	 * @param  string $data
	 * @return string
	 */
	public function save($id, $data);

	/**
	 * Fetch data from file.
	 *
	 * @access public
	 * @param  string $id
	 * @return void
	 */
	public function fetch($id);

	/**
	 * Delete data from storage.
	 *
	 * @access public
	 * @param  string $id
	 * @return void
	 */
	public function delete($id);

	/**
	 * Data exists in storage.
	 *
	 * @access public
	 * @param  string  $id
	 * @return boolean
	 */
	public function exists($id);
}
